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XIO2001 Datasheet(PDF) 123 Page - Texas Instruments |
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XIO2001 Datasheet(HTML) 123 Page - Texas Instruments |
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123 / 131 page  7.7 PCI Bus Electrical Characteristics (1) 7.8 3.3-V I/O Electrical Characteristics (1) XIO2001 PCI Express™ to PCI Bus Translation Bridge www.ti.com SCPS212B – MAY 2009 – REVISED JULY 2009 PCI Express Differential Reference Clock Input Ranges (continued) PARAMETER TERMINALS MIN NOM MAX UNIT COMMENTS ZRX-DC REFCLK+ 20 k Ω REFCLK+ dc single-ended mode impedance DC input impedance REFCLK– over recommended operating conditions PARAMETER OPERATION TEST CONDITIONS MIN MAX UNIT PCIR = 3.3 V 0.5 × V DD_33 PCIR + 0.5 VIH High-level input voltage(2) V PCIR = 5 V 2.0 PCIR + 0.5 PCIR = 3.3 V –0.5 0.3 × V DD_33 VIL Low-level input voltage (2) V PCIR = 5 V –0.5 0.8 VI Input voltage 0 PCIR V VO Output voltage(3) 0 VDD_33 V tt Input transition time (trise and tfall) 1 4 ns PCIR = 3.3 V IOH = –500 µA 0.9 × V DD_33 VOH High-level output voltage V PCIR = 5 V IOH = –2 mA 2.4 PCIR = 3.3 V IOH = 1500 µA 0.1 × V DD_33 VOL Low-level output voltage V PCIR = 5 V IOH = 6 mA 0.55 PCIR = 3.3 V ±10 IOZ High-impedance, output current(3) µA PCIR = 5 V ±70 PCIR = 3.3 V ±10 II Input current µA PCIR = 5 V ±70 (1) This table applies to CLK, CLKOUT6:0, AD31:0, C/BE[3:0], DEVSEL, FRAME, GNT5:0, INTD:A, IRDY, PAR, PERR, REQ5:0, PRST, SERR, STOP, TRDY, SERIRQ, M66EN, and LOCK terminals. (2) Applies to external inputs and bidirectional buffers. (3) Applies to external outputs and bidirectional buffers. over recommended operating conditions PARAMETER OPERATION TEST CONDITIONS MIN MAX UNIT VIH High-level input voltage(2) VDD_33 0.7 VDD_33 VDD_33 V VIL VIL Low-level input voltage (2) VDD_33 0 0.3 VDD_33 V VI Input voltage 0 VDD_33 V VO Output voltage(3) 0 VDD_33 V tt Input transition time (trise and tfall) 0 25 ns Vhys Input hysteresis(4) 0.13 VDD_33 V VOH High-level output voltage VDD_33 IOH = –4 mA 0.8 VDD_33 V VOL Low-level output voltage VDD_33 IOL = 4 mA 0.22 VDD_33 V IOZ High-impedance, output current(3) VDD_33 VI = 0 to VDD_33 ±20 µA IOZP High-impedance, output current with internal VDD_33 VI = 0 to VDD_33 ±100 µA pullup or pulldown resistor(1) II Input current(5) VDD_33 VI = 0 to VDD_33 ±1 µA (1) Applies to GRST (pullup), EXT_ARB_EN (pulldown), CLKRUN_EN (pulldown), and most GPIO (pullup). (2) Applies to external inputs and bidirectional buffers. (3) Applies to external outputs and bidirectional buffers. (4) Applies to PERST, GRST, and PME. (5) Applies to external input buffers. Submit Documentation Feedback Electrical Characteristics 123 |
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